Geography

Main article: Geography of South Africa Satellite picture of South Africa The Drakensberg mountains, the highest mountain range in South Africa

South Africa is located at the southernmost region of Africa, with a long coastline that stretches more than 2,500 km (1,553 mi) and along two oceans (the South Atlantic and the Indian). At 1,219,912 km2 (471,011 sq mi), South Africa is the 25th-largest country in the world and is comparable in size to Colombia. Mafadi in the Drakensberg at 3,450 m (11,320 ft) is the highest peak in South Africa. Excluding the Prince Edward Islands, the country lies between latitudes 22° and 35°S, and longitudes 16° and 33°E.

The interior of South Africa is a vast, flat, and sparsely populated scrubland, the Karoo, which is drier towards the northwest along the Namib desert. In contrast, the eastern coastline is lush and well-watered, which produces a climate similar to the tropics.

To the north of Johannesburg, the altitude drops beyond the escarpment of the Highveld, and turns into the lower lying Bushveld, an area of mixed dry forest and an abundance of wildlife. East of the Highveld, beyond the eastern escarpment, the Lowveld stretches towards the Indian Ocean. It has particularly high temperatures, and is also the location of extended subtropical agriculture.

South Africa also has one possession, the small sub-Antarctic archipelago of the Prince Edward Islands, consisting of Marion Island (290 km2 or 110 sq mi) and Prince Edward Island (45 km2 or 17 sq mi) (not to be confused with the Canadian province of the same name).

Climate Main article: Climate of South Africa

South Africa has a generally temperate climate, due in part to being surrounded by the Atlantic and Indian Oceans on three sides, by its location in the climatically milder southern hemisphere and due to the average elevation rising steadily towards the north (towards the equator) and further inland. Due to this varied topography and oceanic influence, a great variety of climatic zones exist. The climatic zones range from the extreme desert of the southern Namib in the farthest northwest to the lush subtropical climate in the east along the Mozambique border and the Indian Ocean. Winters in South Africa occur between June and August.

The extreme southwest has a climate remarkably similar to that of the Mediterranean with wet winters and hot, dry summers, hosting the famous Fynbos biome of shrubland and thicket. This area also produces much of the wine in South Africa. This region is also particularly known for its wind, which blows intermittently almost all year. The severity of this wind made passing around the Cape of Good Hope particularly treacherous for sailors, causing many shipwrecks. Further east on the south coast, rainfall is distributed more evenly throughout the year, producing a green landscape. This area is popularly known as the Garden Route.

The Free State is particularly flat because it lies centrally on the high plateau. North of the Vaal River, the Highveld becomes better watered and does not experience subtropical extremes of heat. Johannesburg, in the centre of the Highveld, is at 1,740 m (5,709 ft) and receives an annual rainfall of 760 mm (29.9 in). Winters in this region are cold, although snow is rare.

The high Drakensberg mountains, which form the south-eastern escarpment of the Highveld, offer limited skiing opportunities in winter. The coldest place in South Africa is Sutherland in the western Roggeveld Mountains, where midwinter temperatures can reach as low as −15 °C (5 °F). The deep interior has the hottest temperatures: a temperature of 51.7 °C (125.06 °F) was recorded in 1948 in the Northern Cape Kalahari near Upington., but this temperature is unofficial and was not recorded with standard equipment, the official highest temperature is 48.8 °C (119.84 °F) at Vioolsdrif in January 1993.

Biodiversity See also: Wildlife of South Africa and Protected areas of South Africa

South Africa signed the Rio Convention on Biological Diversity on 4 June 1994, and became a party to the convention on 2 November 1995. It has subsequently produced a National Biodiversity Strategy and Action Plan, which was received by the convention on 7 June 2006. The country is ranked sixth out of the world's seventeen megadiverse countries.

Animals South African giraffe, Kruger National Park

Numerous mammals are found in the bushveld including lions, leopards, white rhinos, blue wildebeest, kudus, impalas, hyenas, hippopotamus and giraffes. A significant extent of the bushveld exists in the north-east including Kruger National Park and the Mala Mala Reserve, as well as in the far north in the Waterberg Biosphere. South Africa houses many endemic species, among them the critically endangered Riverine Rabbit (Bunolagus monticullaris) in the Karoo.

Fungi

There is no recent estimate of the number of fungal species recorded from South Africa. Up to 1945, more than 4900 species of fungi (including lichen-forming species) had been recorded, and the number now after more than 60 years of further exploration must be much higher. In 2006, the total number of fungi which occur in South Africa was conservatively estimated at about 200,000 species, but that did not take into account fungi associated with insects. If correct, then the number of South African fungi dwarfs that of its plants. In at least some major South African ecosystems, an exceptionally high percentage of fungi are highly specific in terms of the plants with which they occur. The number of South African fungi which are endemic and the number which are endangered must therefore be very high indeed, and much higher than the number of endangered plants. The country's biodiversity strategy and action plan does not mention fungi (including lichen-forming fungi).

Plants

With more than 20,000 different plants, or about 10% of all the known species of plants on Earth, South Africa is particularly rich in plant diversity. The most prevalent biome in South Africa is the grassland, particularly on the Highveld, where the plant cover is dominated by different grasses, low shrubs, and acacia trees, mainly camel-thorn and whitethorn. Vegetation becomes even more sparse towards the northwest due to low rainfall. There are several species of water-storing succulents like aloes and euphorbias in the very hot and dry Namaqualand area. The grass and thorn savannah turns slowly into a bush savannah towards the north-east of the country, with denser growth. There are significant numbers of baobab trees in this area, near the northern end of Kruger National Park.

The Fynbos biome, which makes up the majority of the area and plant life in the Cape floristic region, one of the six floral kingdoms, is located in a small region of the Western Cape and contains more than 9,000 of those species, making it among the richest regions on earth in terms of plant diversity. Most of the plants are evergreen hard-leaf plants with fine, needle-like leaves, such as the sclerophyllous plants. Another uniquely South African flowering plant group is the genus Protea. There are around 130 different species of Protea in South Africa.

While South Africa has a great wealth of flowering plants, only 1% of South Africa is forest, almost exclusively in the humid coastal plain of KwaZulu-Natal, where there are also areas of Southern Africa mangroves in river mouths. There are even smaller reserves of forests that are out of the reach of fire, known as montane forests. Plantations of imported tree species are predominant, particularly the non-native eucalyptus and pine.

Conservation issues

South Africa has lost a large area of natural habitat in the last four decades, primarily due to overpopulation, sprawling development patterns and deforestation during the nineteenth century. South Africa is one of the worst affected countries in the world when it comes to invasion by alien species with many (e.g. Black Wattle, Port Jackson, Hakea, Lantana and Jacaranda) posing a significant threat to the native biodiversity and the already scarce water resources. The original temperate forest found by the first European settlers was exploited ruthlessly until only small patches remained. Currently, South African hardwood trees like Real Yellowwood (Podocarpus latifolius), stinkwood (Ocotea bullata), and South African Black Ironwood (Olea laurifolia) are under government protection. Statistics from South African National Parks show a record 333 rhinos have been killed in 2010.

Climate change is expected to bring considerable warming and drying to much of this already semi-arid region, with greater frequency and intensity of extreme weather events such as heatwaves, flooding and drought. According to computer generated climate modelling produced by the South African National Biodiversity Institute parts of southern Africa will see an increase in temperature by about one degree Celsius along the coast to more than four degrees Celsius in the already hot hinterland such as the Northern Cape in late spring and summertime by 2050. The Cape Floral Kingdom, been identified as one of the global biodiversity hotspots, it will be hit very hard by climate change. Drought, increased intensity and frequency of fire and climbing temperatures are expected to push many rare species towards extinction.

Biodiversity of South Africa

The Protea, national flower of South Africa Fynbos, a floral kingdom unique to South Africa, is found near Cape Town The Blue Crane is the national bird of South Africa A field of flowers in the West Coast National Park